#!/bin/bash # # bacman: recreate a package from a running system # This script rebuilds an already installed package using metadata # stored into the pacman database and system files # # (c) 2008 - locci <carlocci_at_gmail_dot_com> # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. # readonly progname="bacman" readonly progver="0.2.1" # # User Friendliness # function usage(){ echo "This program recreates a package using pacman's db and system files" echo "Usage: $progname <installed package name>" echo "Example: $progname kernel26" } if [ $# -ne 1 ] ; then usage exit 1 fi if [ "$1" = "--help" -o "$1" = "-h" ] ; then usage exit 0 fi if [ "$1" = "--version" -o "$1" = "-v" ]; then echo "$progname version $progver" echo "Copyright (C) 2008 locci" exit 0 fi # # Fakeroot support # if [ $EUID -gt 0 ]; then if [ -f /usr/bin/fakeroot ]; then echo "Entering fakeroot environment" export INFAKEROOT="1" /usr/bin/fakeroot -u -- $0 $1 exit $? else echo "WARNING: installing fakeroot or running ${progname} as root is required to" echo " preserve the ownership permissions of files in some packages" echo "" fi fi # # Setting environmental variables # if [ ! -r /etc/pacman.conf ]; then echo "ERROR: unable to read /etc/pacman.conf" exit 1 fi eval $(awk '/DBPath/ {print $1$2$3}' /etc/pacman.conf) pac_db="${DBPath:-/var/lib/pacman/}/local" if [ ! -r /etc/makepkg.conf ]; then echo "ERROR: unable to read /etc/makepkg.conf" exit 1 fi source "/etc/makepkg.conf" if [ -r ~/.makepkg.conf ]; then source ~/.makepkg.conf fi pkg_arch=${CARCH:-'unknown'} pkg_dest="${PKGDEST:-$PWD}" pkg_ext=${PKGEXT:-'.pkg.tar.gz'} pkg_pkger=${PACKAGER:-'Unknown Packager'} pkg_name="$1" pkg_dir="$(echo $pac_db/$pkg_name-[0-9]*)" pkg_namver="${pkg_dir##*/}" # # Checks everything is in place # if [ ! -d "$pac_db" ] ; then echo "ERROR: pacman database directory ${pac_db} not found" exit 1 fi if [ ! -d "$pkg_dir" ] ; then echo "ERROR: package ${pkg_name} not found in pacman database" exit 1 fi # # Begin # echo Package: ${pkg_namver} work_dir=$(mktemp -d -p /tmp) cd "$work_dir" || exit 1 # # File copying # echo "Copying package files..." cat "$pkg_dir"/files | while read i; do if [ -z "$i" ] ; then continue fi if [[ "$i" =~ %[A-Z]*% ]] ; then current=$i continue fi case $current in %FILES%) ret=0 if [ -e "/$i" ]; then bsdtar -cnf - "/$i" 2> /dev/null | bsdtar -xpf - # Workaround to bsdtar not reporting a missing file as an error if [ ! -e "$work_dir/$i" -a ! -L "$work_dir/$i" ]; then echo "" echo "ERROR: unable to add /$i to the package" echo " If your user does not have permssion to read this file then" echo " you will need to run $progname as root" rm -rf "$work_dir" exit 1 fi else echo "" echo "WARNING: package file /$i is missing" echo "" fi ;; esac done ret=$? if [ $ret -ne 0 ]; then rm -rf "$work_dir" exit 1 fi pkg_size=$(du -sk | awk '{print $1 * 1024}') if [ -f "$pkg_dir/install" ] ; then cp "$pkg_dir/install" "$work_dir/.INSTALL" fi if [ -f $pkg_dir/changelog ] ; then cp "$pkg_dir/changelog" "$work_dir/.CHANGELOG" fi # # .PKGINFO stuff # echo Generating .PKGINFO metadata... echo "# Generated by $progname $progver" > .PKGINFO if [ "$INFAKEROOT" = "1" ]; then echo "# Using $(fakeroot -v)" >> .PKGINFO fi echo "# $(LC_ALL=C date)" >> .PKGINFO echo "#" >> .PKGINFO cat "$pkg_dir"/{desc,files,depends} | while read i; do if [[ -z "$i" ]]; then continue; fi if [[ "$i" =~ %[A-Z]*% ]] ; then current=$i continue fi case "$current" in # desc %NAME%) echo "pkgname = $i" >> .PKGINFO ;; %VERSION%) echo "pkgver = $i" >> .PKGINFO ;; %DESC%) echo "pkgdesc = $i" >> .PKGINFO ;; %URL%) echo "url = $i" >> .PKGINFO ;; %LICENSE%) echo "license = $i" >> .PKGINFO ;; %ARCH%) echo "arch = $i" >> .PKGINFO ;; %BUILDDATE%) echo "builddate = $(date -u "+%s")" >> .PKGINFO ;; %PACKAGER%) echo "packager = $pkg_pkger" >> .PKGINFO ;; %SIZE%) echo "size = $pkg_size" >> .PKGINFO ;; %GROUPS%) echo "group = $i" >> .PKGINFO ;; %REPLACES%) echo "replaces = $i" >> .PKGINFO ;; %FORCE%) echo "force = true" >> .PKGINFO ;; # files %BACKUP%) # strip the md5sum after the tab echo "backup = ${i%%$'\t'*}" >> .PKGINFO ;; # depends %DEPENDS%) echo "depend = $i" >> .PKGINFO ;; %OPTDEPENDS%) echo "optdepend = $i" >> .PKGINFO ;; %CONFLICTS%) echo "conflict = $i" >> .PKGINFO ;; %PROVIDES%) echo "provides = $i" >> .PKGINFO ;; esac done # # Fixes owner:group and permissions for .PKGINFO, .CHANGELOG, .INSTALL # chown root:root "$work_dir"/{.PKGINFO,.CHANGELOG,.INSTALL} 2> /dev/null chmod 644 "$work_dir"/{.PKGINFO,.CHANGELOG,.INSTALL} 2> /dev/null # # Generate the package # echo "Generating the package..." ret=0 bsdtar -czf "$pkg_dest/$pkg_namver-$pkg_arch$pkg_ext" $(ls -A) || ret=$? if [ $ret -ne 0 ]; then echo "ERROR: unable to write package to $pkg_dest" echo " Maybe the disk is full or you do not have write access" rm -rf "$work_dir" exit 1 fi rm -rf "$work_dir" echo Done exit 0 # vim: set ts=2 sw=2 noet: